Guitar pick-up



FIG. 1 is a top front left perspective view of a guitar pick-up;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof (the rear elevational view being a mirror image thereof); and,

FIG. 5 is right side elevational view thereof (the left side elevational view being a mirror image thereof).

The dashed lines are for illustrative purposes only and form no part of the claimed design. 

We claim the ornamental design for a guitar pick-up, as shown and described. 